The complex shape of the leaf called Brittsia problematica suggests a floating life habit. The rachis and the pinna axes are flattened. The pinna axes have lateral lobes extending in the plane of the axes. The pinnules are lacerated and extend out of this plane. Several of the above mentioned characteristics of Brittsia are similar to those described by Phillips and Andrews (1968) from the fertile frond portion of Biscalitheca. Therefore, it becomes more likely that Brittsia is a coenopterid...
byNitecki, Matthew H; Field Museum of Natural History
Ischadites elrodi (S. A. Miller, 1892) a Lower Middle Devonian receptacultid from Indiana is redescribed as a dasycladacean alga closely related to Silurian Ischadites koenigii Murchison, 1839 Topics: Ischadites elrodi, Paleontology -- Devonian, Paleontology -- Indiana Hartsville Region
byChang, Mee-mann; Field Museum of Natural History; Grande, Lance. joint author Geology Dept., Field Museum of Natural History
A reexamination and redescription of the Early Cretaceous clupeomorph Paraclupea chetungensis from southeastern China based on newly prepared specimens reveals a number of characters it shares with Ellimmichthys longicostatus (Cope, 1886) from eastern Brazil and Ellimmichthys goodi (Eastman, 1912) from West Africa (Equatorial Guinea) but not with Diplomystus (from western North America, eastern China, and the Middle East). These characters are summarized in a differential diagnosis of... Topics: Paleontology -- Cretaceous, Ellimmichthys, Fossil -- China, Clupeidae, Fossil -- China